Company email:
UPDATE:
"Just a correction on the information on your website: We use a very small amount of isinglass as a fining/clarifying agent on our white wines only. We do not fine our red wines with anything = vegan friendly."

Company email:
"Actually, in the fining of our wines, we use the air sacks of sturgeons. We also use gelatin which is also an animal derivative. Have a great day!"